Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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Page(s) | C2-1245 - C2-1246 | |
DOI | https://doi.org/10.1051/jp4:19972215 |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-1245-C2-1246
DOI: 10.1051/jp4:19972215
1 Dipartimento di Fisica, Università di Roma "La Sapienza", P.A. Moro 2, 00185 Roma, Italy
2 Laboratoire de Cristallographie CNRS, avenue des Martyrs, 38042 Grenoble, France
3 Solid State Physics Laboratory, Swiss Federal Institute of Technology, ETH Hönggeberg 8093, Switzerland
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-1245-C2-1246
DOI: 10.1051/jp4:19972215
Temperature Dependent Local Instability of the Hg1212 Structure by Polarized EXAFS
N.L. Saini1, M. Brunelli1, A. Lanzara1, M. Lusignoli1, T. Rossetti1, A. Bianconi1, P. Bordet2, F. Duc2, J.L. Hazemann2 and J. Karpinski31 Dipartimento di Fisica, Università di Roma "La Sapienza", P.A. Moro 2, 00185 Roma, Italy
2 Laboratoire de Cristallographie CNRS, avenue des Martyrs, 38042 Grenoble, France
3 Solid State Physics Laboratory, Swiss Federal Institute of Technology, ETH Hönggeberg 8093, Switzerland
Abstract
The local structure of the (Hg1212) crystal has been investigated by temperature dependent polarized Cu K-edge extended x-ray absorption fine structure (EXAFS). We have observed an anomalous behavior of the local structure showing anomaly at around the superconducting transition temperature Tc in the temperature dependence of the Cu-O(planar) distance. The result suggests similarity of the temperature dependent local instability in the superconducting cuprates.
© EDP Sciences 1997